An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up b

Question

An open glass tube is immersed in mercury in such a way that a length of $8$ $cm$ extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional $46$ $cm$ . The length of the air column above the mercury, in the tube now, is (Atmospheric pressure $= 76 cm$ of Hg)

Options:

Answer:

C

Solution:

$(76) \times (8) = (54 - x) (76 - x)$

$x = 38 C M$

Length of air column $= 54 - 38 = 16 C M$

TestHub · Accepted Answer

76 × 8 = 54 - x 76 - x x = 38 C M Length of air column = 54 - 38 = 16 C M

Physics - Fluid Question with Solution | TestHub

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